Originally Posted by Sauternes

Good point, I have 2 issues with "thinner" tyres:
- I don't know which is the minimum size I can mount on my wheels, original tyres of my Apex were pretty wide, did you mount your 1,5" tyres on regular MTB wheels?
- the second point is aesthetic: even if I want the bike to be as smoothly rolling as possible I don't want to put on tyres that don't look adequate to the overall design of the bike